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公开(公告)号：US20230059516A1
公开(公告)日：2023-02-23
申请号：US17788811
申请日：2020-12-07
IPC分类号： H04N19/597 , H04N19/29 , H04N19/179
摘要： There are disclosed various methods, apparatuses and computer program products for video encoding and decoding. In some embodiments the method for video encoding comprises obtaining compressed volumetric video data representing a three-dimensional scene or object (71); capsulating the compressed volumetric video data into a data structure (72); obtaining data of a two-dimensional projection of at least a part of the three-dimensional scene as seen from a certain viewport (73); and including the data of the two-dimensional projection into the data structure (74).
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公开(公告)号：US20220159297A1
公开(公告)日：2022-05-19
申请号：US17439463
申请日：2020-03-19
发明人： Sebastian SCHWARZ
IPC分类号： H04N19/597 , H04N19/70 , G06T15/04 , G06T15/10 , H04N13/178 , H04N19/20
摘要： There are disclosed a method and an apparatus for video encoding. A method can include projecting a 3D representation of at least one object onto at least one 2D patch (400); generating a geometry image, a texture image, an occupancy map and auxiliary patch information from the 2D patch, wherein the auxiliary patch information comprises metadata relating to properties of the patch and one or more indicators for configuring reconstruction of the 3D representation of the at least one object (402); and encoding the geometry image, the texture image, the occupancy map and the auxiliary patch information in or along a bitstream (404).
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公开(公告)号：US20210099703A1
公开(公告)日：2021-04-01
申请号：US17032049
申请日：2020-09-25
IPC分类号： H04N19/119 , G06K9/00 , H04N19/172 , H04N19/167 , H04N19/70 , G06T9/00
摘要： Apparatuses, methods, and computer programs are disclosed for fractional/arbitrary tile grouping. An example apparatus includes circuitry configured to receive a video presentation frame, wherein the video presentation frame represents three-dimensional data; divide the video presentation frame into a plurality of tiles, wherein one or more of the plurality of tiles may be a fractional tile, as part of a process of encoding the video presentation frame, wherein each tile represents a part of the three-dimensional data of the video presentation frame; group the tiles into one or more groups, wherein individual tiles of the video presentation frame have a capability of not belonging to any of the one or more groups; in response to fractional tiling being present, transmit a signal of fractional tiling related syntax or semantics; and provide an encoded video presentation frame to a decoder, the encoded video presentation frame comprising the grouping of the tiles.
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公开(公告)号：US20230306646A1
公开(公告)日：2023-09-28
申请号：US18121796
申请日：2023-03-15
发明人： Aleksei MARTEMIANOV , Sebastian SCHWARZ , Patrice RONDAO ALFACE , Lauri Aleksi ILOLA , Lukasz KONDRAD
摘要： An apparatus comprising circuitry configured to: receive as input a three-dimensional mesh represented as at least one geometry patch of an atlas and at least one texture patch of the atlas; create an occupancy map that indicates which pixels of the at least one geometry patch and the at least one texture patch are occupied having a valid value; wherein the occupancy map is configured to be used to reconstruct the mesh; enter lossy mode; apply, while in lossy mode, an adaptive smoothing filter algorithm to the occupancy map to discard at least one edge of the occupancy map, and to reduce a bitrate for transmission of the occupancy map; store, while in lossy mode, the adaptively smoothed occupancy map and at least one occupancy filter threshold; and encode the adaptively smoothed occupancy map and the at least one occupancy filter threshold into a bitstream.
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公开(公告)号：US20230129875A1
公开(公告)日：2023-04-27
申请号：US17906242
申请日：2021-03-05
发明人： Lukasz KONDRAD , Vinod Kumar MALAMAL VADAKITAL , Kimmo ROIMELA , Lauri ILOLA , Sebastian SCHWARZ
IPC分类号： H04N19/597 , H04N19/172
摘要： The embodiments relate to a method comprising receiving as an input a volumetric video frame comprising volumetric video data (910); decomposing the volumetric video frame into one or more patches, wherein a patch comprises a volumetric video data component (920); packing several patches, where at least two patches of the several patches comprise a different volumetric video data component with respect to each other, into one video frame (930); generating a bitstream comprising an encoded video frame (940); signaling, in or along the bitstream, existence of encoded video frame containing patches of more than one different volumetric video data component (950); and transmitting the encoded bitstream to a storage for rendering (960). The embodiments also relate to a technical equipment for implementing the method.
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6.发明申请公开(公告)号：US20230068178A1
公开(公告)日：2023-03-02
申请号：US17790370
申请日：2020-12-07
发明人： Sebastian SCHWARZ , Kimmo ROIMELA , Lauri ILOLA , Lukasz KONDRAD
IPC分类号： G06T9/00 , G06T17/20 , H04N13/388 , H04N19/597
摘要： A method and technical equipment for encoding, where the method comprises at least receiving a video presentation frame, where the video presentation represents a three-dimensional data in the form of mesh data (810); separating from the mesh data information on vertices, wherein the information comprises at least connectivity data defining connections between vertices (820);
determining parameters relating to said connectivity data (830); encoding the parameters to a first bitstream as a video component (840); and storing the encoded first bitstream for transmission to a rendering apparatus (850). In addition to encoding, also decoding is disclosed.-
公开(公告)号：US20220407904A1
公开(公告)日：2022-12-22
申请号：US17684838
申请日：2022-03-02
发明人： Lauri Aleksi ILOLA , Lukasz KONDRAD , Christoph BACHHUBER , Sebastian SCHWARZ , Miska HANNUKSELA
IPC分类号： H04L65/61 , H04L65/752 , H04L67/02
摘要： An apparatus may be configured to: transmit, to a client, an indication of one or more request-response overload capabilities; receive, from the client, at least one request for a plurality of media segments based, at least partially, on the indication of the one or more request-response overload capabilities; and transmit, to the client, at least one response comprising the plurality of media segments. The apparatus may be, for example, a media server, an HTTP overload handler, an edge server, a DANE, etc.
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8.发明申请公开(公告)号：US20230119830A1
公开(公告)日：2023-04-20
申请号：US17906991
申请日：2021-03-15
发明人： Sebastian SCHWARZ , Ioan TABUS , Emre Can KAYA
IPC分类号： H04N19/597 , H04N19/14
摘要： Encoding a two depth images of points of a bounded volume (730); determining a first section across a second axis between the depth images to generate a feasible occupancy image and a list of pixels with unknown occupancy status (740); encoding a binary sequence according to a true occupancy image, wherein the binary sequence transmits the occupancy status for the list of pixels with unknown occupancy status (750); detecting anchoring points from the binary sequence, and encoding missing elements between the anchoring points (760); determining a first section across a third axis from the bounding volume reconstructed so far and create a list of pixels with unknown status (780); encoding a binary sequence according to the true occupancy image the sequence conveying the occupancy status of the list of pixels with unknown status (785); and detecting the anchor points from the sequence and corresponding list of pixels and encoding missing elements between the anchoring points (795).
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公开(公告)号：US20220329871A1
公开(公告)日：2022-10-13
申请号：US17641898
申请日：2020-08-26
IPC分类号： H04N19/80 , H04N19/597 , H04N19/70
摘要： A method including projecting a 3D representation of at least one object onto at least one 2D patch; generating a geometry image, a texture image, an occupancy map and auxiliary patch information from 5 the 2D patch, wherein the auxiliary patch information includes metadata indicating whether a filtering process shall be applied on said 2D patch upon reconstruction of the 3D representation of said at least one object; and encoding the auxiliary patch information and zero or more of the following: the geometry image, the texture image and the 10 occupancy map in or along a bitstream.
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10.发明申请公开(公告)号：US20220217400A1
公开(公告)日：2022-07-07
申请号：US17611243
申请日：2020-04-15
发明人： Sebastian SCHWARZ , Kimmo ROIMELA , Mika PESONEN
IPC分类号： H04N19/597 , G06T15/06 , H04N19/70
摘要： A method for decoding comprises receiving a compressed bitstream relating to a video presentation; decoding from the received bitstream data relating to three-dimensional blocks of a video frame; for each block of the video frame, determining information on surface parameters; generating a bounding box for a three-dimensional block according to the surface parameters; calculating a ray direction for each pixel of the three-dimensional block from a viewpoint to coordinates of the pixel; determining at least two points according to an intersection of the ray to the generated bounding box; ray casting points between the determined at least two points until a condition to finish the ray casting is met; reconstructing three-dimensional data from the geometry image and the texture image according to the information on one or more surface parameters for a block; reconstructing a video presentation according to the reconstructed three-dimensional data for rendering.
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